Coatings for cutting tools

摘要

In one aspect, cutting tools are described having coatings adhered thereto which, in some embodiments, can demonstrate desirable wear resistance and increased cutting lifetimes. A coated cutting tool, in some embodiments, comprises a substrate and a coating adhered to the substrate, the coating comprising at least one Zr doped layer deposited by chemical vapor deposition comprising ZrAl2O3.

主权项

1. A coated cutting tool comprising:
a substrate; and a coating adhered to the substrate comprising a polycrystalline layer of ZrAl2O3, the polycrystalline ZrAl2O3 layer having an intra-layer compositional gradient formed of an Al2O3 region transitioning to a ZrAl2O3 region along thickness of the polycrystalline layer.